/// <summary>
/// Construct a leaderless pack.
/// </summary>
/// <param name="theStage"> the scene</param>
/// <param name="label"> name of pack</param>
/// <param name="meshFile"> model of pack instance</param>
public Pack(Stage theStage, string label, string meshFile)
: base(theStage, label, meshFile)
{
isCollidable = true;
leader = null;
random = new Random();
}
public Terrain(Stage theStage, string label, string heightFile, string colorFile)
: base(theStage, label)
{
int i;
range = stage.Range;
width = height = range;
nVertices = width * height;
terrainHeight = new int[width, height];
vertex = new VertexPositionColor[nVertices];
nIndices = (width - 1) * (height - 1) * 6;
indices = new int[nIndices]; // there are 6 indices 2 faces / 4 vertices
spacing = stage.Spacing;
// set display information
display = stage.Display;
effect = stage.SceneEffect;
heightTexture = stage.Content.Load<Texture2D>(heightFile);
heightMap = new Microsoft.Xna.Framework.Color[width * height];
heightTexture.GetData<Microsoft.Xna.Framework.Color>(heightMap);
// create colorMap values from colorTexture
colorTexture = stage.Content.Load<Texture2D>(colorFile);
colorMap = new Microsoft.Xna.Framework.Color[width * height];
colorTexture.GetData<Microsoft.Xna.Framework.Color>(colorMap);
// create vertices for terrain
Vector4 vector4;
int vertexHeight;
i = 0;
for (int z = 0; z < height; z++)
for (int x = 0; x < width; x++)
{
vector4 = heightMap[i].ToVector4(); // convert packed Rgba32 values to floats
vertexHeight = (int)(vector4.X * 255); // scale vertexHeight 0..255
vertexHeight *= multiplier; // multiply height
terrainHeight[x, z] = vertexHeight; // save height for navigation
vertex[i] = new VertexPositionColor( new Vector3(x * spacing, vertexHeight, z * spacing), new Color(colorMap[i].ToVector4()));
i++;
}
// free up unneeded maps
colorMap = null;
heightMap = null;
// set indices clockwise from point of view
i = 0;
for (int z = 0; z < height - 1; z++)
for (int x = 0; x < width - 1; x++)
{
indices[i++] = z * width + x;
indices[i++] = z * width + x + 1;
indices[i++] = (z + 1) * width + x;
indices[i++] = (z + 1) * width + x;
indices[i++] = z * width + x + 1;
indices[i++] = (z + 1) * width + x + 1;
}
// create VertexBuffer and store on GPU
vb = new VertexBuffer(display, typeof(VertexPositionColor), vertex.Length, BufferUsage.WriteOnly);
vb.SetData<VertexPositionColor>(vertex); // , 0, vertex.Length);
// create IndexBuffer and store on GPU
ib = new IndexBuffer(display, typeof(int), indices.Length, BufferUsage.WriteOnly);
IB.SetData<int>(indices);
}
public Camera(Stage aScene, CameraEnum cameraType)
{
name = "Whole stage";
scene = aScene;
cameraCase = cameraType;
terrainCenter = scene.TerrainSize / 2;
updateViewMatrix();
}
/// <summary>
/// Create a path
/// </summary>
/// <param name="theStage"> "world's stage" </param>
/// <param name="apath"> collection of nodes in path</param>
/// <param name="aPathType"> SINGLE, REVERSE, or LOOP path traversal</param>
public Path(Stage theStage, List<NavNode> aPath, PathType aPathType)
: base(theStage)
{
node = aPath;
nextNode = 0;
pathType = aPathType;
stage = theStage;
done = false;
}
public Wall(Stage theStage, string label, string meshFile)
: base(theStage, label, meshFile)
{
isCollidable = true;
// "just another brick in the wall", Pink Floyd
int spacing = stage.Terrain.Spacing;
Terrain terrain = stage.Terrain;
int wallBaseX = 300;
int wallBaseZ = 448;
int xPos, zPos;
// 8 right
for (int i = 0; i < 7; i++) {
xPos = i + wallBaseX;
zPos = wallBaseZ;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// up 7 then down 18
for (int i = 0; i < 18; i++) {
xPos = wallBaseX + 7;
zPos = i - 7 + wallBaseZ;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// 4 up, after skipping 3 left
for (int i = 0; i < 4; i++) {
xPos = wallBaseX + 1;
zPos = wallBaseZ + 10 - i;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// up 1 left 8
for (int i = 0; i < 8; i++) {
xPos = -i + wallBaseX + 1;
zPos = wallBaseZ + 6;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// up 12
for (int i = 0; i < 12; i++) {
xPos = wallBaseX - 6;
zPos = -i + wallBaseZ + 5;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// 8 right
for (int i = 0; i < 8; i++) {
xPos = i + wallBaseX - 6;
zPos = wallBaseZ - 6;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
// up 2
for (int i = 0; i < 2; i++) {
xPos = wallBaseX + 1;
zPos = wallBaseZ - 6 - i;
addObject(new Vector3(xPos * spacing, terrain.surfaceHeight(xPos, zPos), zPos * spacing), Vector3.Up, 0.0f);
}
}
public Player(Stage theStage, string label, Vector3 pos, Vector3 orientAxis, float radians, string meshFile)
: base(theStage, label, pos, orientAxis, radians, meshFile)
{
// change names for on-screen display of current camera
first.Name = "First";
follow.Name = "Follow";
above.Name = "Above";
IsCollidable = true; // Player test collisions
rotate = 0;
angle = 0.01f;
initialOrientation = agentObject.Orientation;
}
/// <summary>
/// Create an Agent.
/// All Agents are collidable and have a single instance Object3D named agentObject.
/// Set StepSize, create first, follow and above cameras.
/// Set first as agentCamera
/// <param name="stage"></param>
/// <param name="label"></param>
/// <param name="position"></param>
/// <param name="orientAxis"></param>
/// <param name="radians"></param>
/// <param name="meshFile"></param>
/// </summary>
public Agent(Stage stage, string label, Vector3 position, Vector3 orientAxis,
float radians, string meshFile)
: base(stage, label, meshFile)
{
addObject(position, orientAxis, radians);
agentObject = instance.First<Object3D>();
first = new Camera(stage, agentObject, Camera.CameraEnum.FirstCamera);
follow = new Camera(stage, agentObject, Camera.CameraEnum.FollowCamera);
above = new Camera(stage, agentObject, Camera.CameraEnum.AboveCamera);
stage.addCamera(first);
stage.addCamera(follow);
stage.addCamera(above);
agentCamera = first;
}
/// <summary>
/// Create a NPC.
/// AGXNASK distribution has npAgent move following a Path.
/// </summary>
/// <param name="theStage"> the world</param>
/// <param name="label"> name of </param>
/// <param name="pos"> initial position </param>
/// <param name="orientAxis"> initial rotation axis</param>
/// <param name="radians"> initial rotation</param>
/// <param name="meshFile"> Direct X *.x Model in Contents directory </param>
public NPAgent(Stage theStage, string label, Vector3 pos, Vector3 orientAxis,
float radians, string meshFile)
: base(theStage, label, pos, orientAxis, radians, meshFile)
{
// change names for on-screen display of current camera
first.Name = "npFirst";
follow.Name = "npFollow";
above.Name = "npAbove";
// IsCollidable = true; // have NPAgent test collisions
// path is built to work on specific terrain
path = new Path(stage, makePath(), Path.PathType.REVERSE); // continuous search path
stage.Components.Add(path);
nextGoal = path.NextNode; // get first path goal
agentObject.turnToFace(nextGoal.Translation); // orient towards the first path goal
}
private int step, stepSize; // values for stepping
#endregion Fields
#region Constructors
// constructors
/// <summary>
/// Object that places and orients itself.
/// </summary>
/// <param name="theStage"> the stage containing object </param>
/// <param name="aModel">how the object looks</param>
/// <param name="label"> name of object </param>
/// <param name="position"> position in stage </param>
/// <param name="orientAxis"> axis to orient on </param>
/// <param name="radians"> orientation rotation </param>
public Object3D(Stage theStage, Model3D aModel, string label, Vector3 position,
Vector3 orientAxis, float radians)
{
scales = Vector3.One;
stage = theStage;
model = aModel;
name = label;
step = 1;
stepSize = 48;
pitch = yaw = roll = 0.0f;
orientation = Matrix.Identity;
orientation *= Matrix.CreateFromAxisAngle(orientAxis, radians);
orientation *= Matrix.CreateTranslation(position);
scaleObjectBoundingSphere();
}
// public Model3D(Stage theStage, string label, Vector3 position, Vector3 orientAxis,
// float radians, string fileOfModel) : base (theStage) {
public Model3D(Stage theStage, string label, string fileOfModel)
: base(theStage)
{
name = label;
stage = theStage;
instance = new List<Object3D>();
model = stage.Content.Load<Model>(fileOfModel);
// compute the translation to the model's bounding sphere
// center and radius;
float minX, minY, minZ, maxX, maxY, maxZ;
minX = minY = minZ = Int32.MaxValue;
maxX = maxY = maxZ = Int32.MinValue;
for (int i = 0; i < model.Meshes.Count; i++)
{
// See if this mesh extends the bounding sphere.
BoundingSphere aBoundingSphere = model.Meshes[i].BoundingSphere;
if ((aBoundingSphere.Center.X - aBoundingSphere.Radius) < minX)
minX = aBoundingSphere.Center.X - aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Y - aBoundingSphere.Radius) < minY)
minY = aBoundingSphere.Center.Y - aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Z - aBoundingSphere.Radius) < minZ)
minZ = aBoundingSphere.Center.Z - aBoundingSphere.Radius;
if ((aBoundingSphere.Center.X + aBoundingSphere.Radius) > maxX)
maxX = aBoundingSphere.Center.X + aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Y + aBoundingSphere.Radius) > maxY)
maxY = aBoundingSphere.Center.Y + aBoundingSphere.Radius;
if ((aBoundingSphere.Center.Z + aBoundingSphere.Radius) > maxZ)
maxZ = aBoundingSphere.Center.Z + aBoundingSphere.Radius;
}
// get the diameter of model's bounding sphere
// radius temporarily holds the largest diameter
if ((maxX - minX) > boundingSphereRadius) boundingSphereRadius = maxX - minX;
if ((maxY - minY) > boundingSphereRadius) boundingSphereRadius = maxY - minY;
if ((maxZ - minZ) > boundingSphereRadius) boundingSphereRadius = maxZ - minZ;
// set boundingSphereRadius
boundingSphereRadius = boundingSphereRadius * 1.1f / 2.0f; // set the radius from largest diameter
// set the center of model's bounding sphere
boundingSphereCenter =
new Vector3(minX + boundingSphereRadius, minY + boundingSphereRadius, minZ + boundingSphereRadius);
// need to scale boundingSphereRadius for each object instances in Object3D
}
/// <summary>
/// Create a path from XZ nodes defined in a pathFile.
/// The file must be accessible from the executable environment.
/// </summary>
/// <param name="theStage"> "world's stage" </param>
/// <param name="aPathType"> SINGLE, REVERSE, or LOOP path traversal</param>
/// <param name="pathFile"> text file, each line a node of X Z values, separated by a single space </x></param>
public Path(Stage theStage, PathType aPathType, string pathFile)
: base(theStage)
{
node = new List<NavNode>();
stage = theStage;
nextNode = 0;
pathType = aPathType;
done = false;
// read file
using (StreamReader fileIn = File.OpenText(pathFile)) {
int x, z;
string line;
string[] tokens;
line = fileIn.ReadLine();
do {
tokens = line.Split(new char[] {}); // use default separators
x = Int32.Parse(tokens[0]);
z = Int32.Parse(tokens[1]);
node.Add(new NavNode(new Vector3(x, 0, z), NavNode.NavNodeEnum.WAYPOINT));
line = fileIn.ReadLine();
} while (line != null);
}
}
public IndexVertexBuffers(Stage theStage, string label)
: base(theStage)
{
stage = theStage;
name = label;
}
// public MovableModel3D(Stage theStage, string label, Vector3 position,
// Vector3 orientAxis, float radians, string meshFile)
// : base(theStage, label, position, orientAxis, radians, meshFile)
public MovableModel3D(Stage theStage, string label, string meshFile)
: base(theStage, label, meshFile)
{
}
// Constructor
public Cloud(Stage stage, string label, string meshFile)
: base(stage, label, meshFile)
{
random = new Random();
}
/// <summary>
/// Construct a pack with an Object3D leader
/// </summary>
/// <param name="theStage"> the scene </param>
/// <param name="label"> name of pack</param>
/// <param name="meshFile"> model of a pack instance</param>
/// <param name="aLeader"> Object3D alignment and pack center </param>
public Pack(Stage theStage, string label, string meshFile, Object3D aLeader)
: base(theStage, label, meshFile)
{
isCollidable = true;
leader = aLeader;
}
public Camera(Stage aScene, Object3D anAgentObject, CameraEnum cameraType)
{
scene = aScene;
agent = anAgentObject;
cameraCase = cameraType;
}